SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
jbenjamin.org
SSL/TLS Certificate
SSL/TLS Certificate for jbenjamin.org
Self-signed- Issued by (CA)
- jbenjamin.org
- Subject
- jbenjamin.org
- Valid from
- Jan 17, 2023
- Valid until
- Jan 17, 2024 (expired 1005 days ago)
- Public key
- RSA 2048-bit
- Serial
- F65D0C80
- SHA-256 fingerprint
- 10:61:E2:2B:72:77:AC:BB:0C:77:93:8A:BD:5C:B3:30:E9:0E:8C:28:78:5C:C1:59:A9:B4:99:FD:97:32:B5:5A
- Chain
- jbenjamin.org
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Sep 14, 2026.
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This is today's certificate. Turn on monitoring and we'll watch jbenjamin.org continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, CNAME, TXT and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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